Composite differential plenum



FIG. 1 is a front perspective view of a composite differential plenum showing our new design;

FIG. 2 is a rear perspective view of FIG. 1, but rotated 180°;

FIG. 3 is a rear elevation view of FIG. 2;

FIG. 4 is a front elevation view of FIG. 3;

FIG. 5 is a right side elevation view of FIG. 3;

FIG. 6 is a left side elevation view of FIG. 3;

FIG. 7 is a top plan view, rotated 90° clockwise, of FIG. 3; and,

FIG. 8 is a bottom plan view, rotated 90° counterclockwise, of FIG. 3.

The broken lines shown in the drawings are for the purpose of illustrating portions of the article and form no part of the claimed design. 

CLAIM The ornamental design for a composite differential plenum, as shown and described. 